Free Shopify Size Finder App from Prime AI
If you run a fashion store on Shopify, you already know sizing is a problem. Customers hesitate. They guess, they return. Static size charts don’t help. Most apps are expensive and not easy to implement. So, we made something simple. Prime AI Clothing Size & Fit Finder Lite, it is a free, easy-to-install size finder app that helps your customers pick the right size, even across multiple brands.
Why We Built It
Some retailers don’t need predictive AI or deep analytics. They just need something that works out of the box and fits their budget. Prime AI Clothing Size & Fit Finder Lite is exactly that. It’s not as feature-rich as our Pro version, but it’s clean, quick to install, and gives shoppers reliable sizing recommendations, with zero cost and zero code.
What it does
Custom Sizing Models
Adjust the sizing model to align with your brand’s specific fit. Need help? Let us know.
1,000+ Predefined Brand-Specific Models
Sizing guides for 1,000+ global brands are already included.
Missing a Brand?
We’ll add it for free. Just tell us what you need.
Instant Recommendations
One-time input delivers instant sizing recommendations across multiple products.
Brand-Aware Fit
Recommendations adapt to each brand the shopper views.
Persistent Sizing
If a shopper leaves and comes back, we remember their size and provide an instant recommendation.
Multilingual Support
Available in 12 languages – and we can add more if you need them.
English, French, German, Spanish, Italian, Dutch, Portuguese, Brazillian Portuguese, Rusian, Chinese, Japanese, Hindi.
Size Conversions
EU/US/UK/IT/PT and Waist size conversions – automatic.
Easy Setup
Install in under 10 minutes – no developers required.
Immediate Results
Expect at least a 3% boost in overall Conversion Rate from day one.
What it doesn’t do
- No predictive sizing based on past orders.
- No return pattern analysis.
- No deep analytics or product-level tuning.
For those features, there’s Prime AI Pro. When you’re ready to scale, we’ll help you switch with zero disruption. Want to compare?
Why It’s Free
We built Lite to support smaller stores that need better sizing without committing to a paid AI platform. We hope that as your business grows, you’ll consider upgrading – but there’s no pressure.
You’ll still get support. You’ll still get value. And we’ll still listen to your feedback. This app will keep improving because of early users like you.
Try It Risk-Free
Install it. Try it. If it’s not what you need, remove it. But if it works like we think it will, it could save you a lot of sizing headaches.
Frequently Asked Questions
Will Prime AI slow down my site?
No – our app is optimised for speed.
Can I migrate from Lite to Pro easily?
Yes. Grant us Shopify partner access, and we’ll handle the rest.
Is my data safe?
Absolutely. We adhere to strict GDPR standards.
What support is available?
Onboarding, email support, and a knowledge base.
See Case Studies from Pro Version
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